IF I Have problems with Noise...

haha... see what I did there? if I - iFi
anyways.... thought this would help some of you who are having troubles with noise/hum introduced by your AC lines in your headphones or stereo.
Noise seriously deteriorates our stereo or headphone performances ! And most of the time we don't even know ! I don't think spending few hundred of thousands on something and not getting the most of it is fair, just because of those damn dirty AC !!!!
NOISE is seriously annoying problem in all audio whether we notice it or not so Feel free to share your own solutions you found best as well.
Cheers,
Here is rather a serious problem solved easily:
https://youtu.be/C-1bmwHPfPk

I don't employ a usb-spdif converter any longer & I don't really have any issues with direct connecting USB with the TEAC UD-501... the USB implementation in my old DAC was pretty awful. Don't have hands on time with them but haven't found a lot disappointed purchasers in the ungodly amount of research I've done, have some friends that really enjoy the iFi ipurifiers. The key to tackling noise will be identifying the source issue which is why I posted the PSaudio article. If you've got a ground loop there probably won't be much good getting one of these noise eliminators or converters.